[IGSMAIL-7724] igs14_2035.atx: Update including new GPS III satellite G074

[Arturo Villiger]

Dear IGS colleagues,

The absolute IGS antenna correction file (igs14_wwww.atx) has been
updated. The new release is called 'igs14_2035.atx'. It contains the
following changes:


1) According to NANU 2019001 , BLOCK IIIA satellite SVN74 (2018-109A)
launched on 23 December 2018 was put into operation using PRN 04.
According to the Center for Orbit Determination in Europe (CODE), G074 
became
active on the 9 January 2019 (DOY 009).

Nanu 2019001:

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2019001 NANU TYPE: GENERAL

*** GENERAL MESSAGE TO ALL GPS USERS *** GPS III SVN74 (PRN04) WAS 
LAUNCHED ON 23 DEC 2018 (2018 JDAY 357) AT 1351 ZULU. THIS SATELLITE 
WILL UNDERGO EXTENSIVE ON-ORBIT CHECK OUT AND TESTING PRIOR TO BEING SET 
HEALTHY.

A USABINIT NANU WILL BE SENT WHEN THE SATELLITE IS SET ACTIVE TO SERVICE.

https://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2019001

The following PRELIMINARY phase center offset (PCO) values were assigned:

PCO_X = 0.0 cm
PCO_Y = 0.0 cm
PCO_Z = 170.0 cm


2) The following decommission date has been added:

   G04 (036):  02 January 2019


The updated antenna correction model is available at
ftp://ftp.igs.org/pub/station/general/igs14_2035.atx
or
ftp://ftp.igs.org/pub/station/general/igs14.atx

With best regards,
Arturo Villiger
on behalf of the IGS Antenna Working Group